Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b32edad4eae7214…

MALICIOUS

PDF

78.3 KB Created: 2021-04-04 02:40:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 352ba71973a3e9a607a9278cde1c775a SHA-1: dc9282f80a7e0294b42f4c4a0bd2b3b10a75948a SHA-256: 8b32edad4eae72148b25d2869d8b1a02405ff6bbdad0b8b02b88cffdbc8a7a08
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics as an external URI and flagged by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, contains text related to movie streaming, suggesting a lure. The presence of embedded URLs and the overall detection by multiple security tools indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://lozipotod.ru/strik?utm_term=the+shack+full+movie+stream
    • https://cdn.sqhk.co/vegedusovo/iaHgfgc/coronapp_colombia_descargar_apk_uptodown.pdf
    • http://cashbackk.site/dusapofanevinasawubobosu28ptl.pdf
    • http://blancop.xyz/remington_11_87_20_ga_cantilever_slug_barrelnm0pu.pdf
    • http://lupelisizi.medianewsonline.com/ccna_cyber_ops.pdf
    • https://tadurefejixuset.weebly.com/uploads/1/3/4/4/134498676/354cf.pdf
    • https://cdn-cms.f-static.net/uploads/4390081/normal_5fdb5635a2d05.pdf
    • http://requiredjokblog.com/shark_lift_away_deluxe_manualwc49r.pdf
    • https://lasapiboxemifol.weebly.com/uploads/1/3/4/8/134865682/buzinubesi-gimore.pdf
    • http://womans30planet.com/conditional_formatting_vlookup_google_sheetsfn8ku.pdf
    • https://cdn-cms.f-static.net/uploads/4475572/normal_604e20dbafd39.pdf
    • https://cdn-cms.f-static.net/uploads/4489241/normal_5fd1ea3abb055.pdf
    • http://maykistore.ru/college_football_playoff_national_championship_2021retf9.pdf
    • https://rebuxikaxaj.weebly.com/uploads/1/3/4/6/134668288/9894895.pdf
    • https://fegajasun.weebly.com/uploads/1/3/4/5/134502742/zavekid.pdf
    • http://urologo.store/anet_computers_epson_workforce_3640_error_code_0x97_fixa1geu.pdf
    • http://esmoney.site/ishq_vishk_mp3_songs_free_downloadnde1b.pdf
    • http://zugobopepoj.sportsontheweb.net/bizotalegoxegoludeteki.pdf
    • http://nitiwomifigurod.mygamesonline.org/carranza_s_clinical_periodontology_12th_edition_free_download.pdf
    • https://cdn.sqhk.co/libibamudo/jagfHdR/64516566239.pdf
    • https://cdn.sqhk.co/lazujanaziri/IhhohdN/kitchen_family_style_show.pdf
    • http://passive-income.ru/which_bbg_program_is_best5k9tm.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rewuwuja.onlinewebshop.net/how_to_attach_bowflex_leg_extension.pdf
    • http://jowawaba.atwebpages.com/6106938387.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f531.bin
096f36226faa5d6abae5d852d180d3347a4b943a97d565c1fe5d0a9f7cdc1248		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF531 5196 bytes
font_01_sfnt_off000106ba.bin
3d9e333099e89e6de24e2eab88f4e84f57a2feab04ba256b1d95b6af381e3e48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106BA 10872 bytes

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